The Danger of Breathing in Smog
Remember that a heterogenous mixture is just any mixture that isn’t uniform, or even, in composition. An important thing to note is that the different parts of a heterogenous mixture can be separated through different ways. Smog is a perfect example of a heterogenous mixtures. Smog is a mixture of emissions, including emissions from cars, fires, and industry pollutants. Smog in the summer is also known as "photochemical smog" because it's when sunshine mixes with hydrocarbons and nitrogen oxides in the atmosphere. Because smog is a heterogenous mixture, the dirty particles breathed in can be separated and be stay in the lungs, which can be a very serious problem.
- Can you think of other examples of common heterogeneous mixtures?
Is oil and vinegar salad dressing a heterogeneous mixture?
- Can you have a mixture that is both heterogeneous and homogeneous?